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Spatio-Temporal Markov Random Field-Based Packet Video Error Concealment
Chalmers University, Department of Signals and Systems. (Communication Systems)
Chalmers University, Department of Signals and Systems. (Communication Systems)
2007 (English)In: Proceedings of IEEE International Conference on Image Processing, 2007, 2007, 241-244 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a spatio-temporal Markov random field method is proposed for block-based packet video error concealment. We suggest the combined usage of two estimators, one for lost pixels, and one for lost motion vectors. The estimator for the lost pixel field takes surrounding pixels in the same frame where the loss occurred and motion-compensated pixels from a previous frame based on a motion field estimate into account, while the optimal estimator of the motion field takes surrounding pixels in the same frame where the loss occurred, pixels from a previous frame, and the estimator function for the pixel field into account. Our method increases performance in peak signal-to-noise ratio as well as subjective visual performance compared to several other previous error concealment algorithms.

Place, publisher, year, edition, pages
2007. 241-244 p.
Keyword [en]
Error concealment, Markov random field, block-based packet video, estimation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-53670DOI: 10.1109/ICIP.2007.4379999ISBN: 978-1-4244-1437-6 (print)OAI: oai:DiVA.org:liu-53670DiVA: diva2:290921
Note
©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Daniel Persson and Thomas Eriksson, Spatio-Temporal Markov Random Field-Based Packet Video Error Concealment, 2007, Proceedings of IEEE International Conference on Image Processing, 2007, 241-244. http://dx.doi.org/10.1109/ICIP.2007.4379999 Available from: 2010-01-28 Created: 2010-01-28 Last updated: 2010-02-02

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Persson, Daniel

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf